Patent US3589937A successfully refreshed from Google Patents.
US3589937A
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Method of producing electric shunts for bridging p-n junctions in semi-conductors
Assignee: Siemens AG
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Filing: 1967-02-10
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Granted: 1971-06-29
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Expires: 1987-02-10
Abstract
Abstract METHOD OF PRODUCING ELECTRIC SHUNTS FOR BRIDGING P-N JUNCTIONS IN SEMICONDUCTOR BODIES. A FOIL IS PLACED ON A SEMI-CONDUCTOR BODY. THIS FOIL CONTAINS PERFORATIONS IN PATTERN. SURFACE OF SEMICONDUCTOR BODY IS ETCHED AWAY THROUGH PERFORATIONS UNTIL P-N JUNCTION IS DESTROYED.
Inventors
- 👤 Kurt Raithel
- 👤 Rene Rosenheinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:06
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D99/00; H10P50/00; H10P50/69; H10P50/691; H10P50/692; H10P50/693; H10P50/695; H10P52/00; Y; Y10; Y10S; Y10S148/00; Y10S148/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |